• [$] Custom page-cache policies with BPF

    From LWN.net@1337:1/100 to All on Fri May 22 15:45:06 2026
    [$] Custom page-cache policies with BPF

    Date:
    Fri, 22 May 2026 14:37:10 +0000

    Description:
    The kernel's page cache is charged with maintaining pages (or, more
    correctly, folios ) containing copies of
    data from files in the filesystem; its performance has a big effect on the performance of the system as a whole. One of the key decisions the kernel
    must make is when to evict folios from the page cache. At the 2026 Linux Storage,
    Filesystem, Memory Management, and BPF Summit , Tal Zussman ran a memory-management-track session on how the page cache could be better customized for specific workloads. It will not be much of a spoiler to say that it involves BPF.

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    Link to news story:
    https://lwn.net/Articles/1073103/


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